Jointing device.



W. H. GREBNLEAF, JR. & P. P. MOORE.

Y Jom'rme DEVICE.

APPLICATION FILED 53M. 11, 1912.

1,062,456. Patented May 20, 1913.

. 3mm 5 reenzey f 2?]? 27200719.

in srs WILLIAM H. GREENLEAF, JB., AND PHILIP P. MOORE, OF GLOUCESTER, MASSACHUSETTS.

JOINTING DEVICE.

ncense.

Specification of Letters Patent.

Patented May 20, 1913.

To all whom it may concern:

Be it known that we, WILLIAM H. GREEN- LEAF, Jr., and PHILIP P. Moons, cltlzens of the United States, residing at Gloucester,

in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Jointing Devices, of which the following is a specification.

Our invention relates to joints and par ticularly to joints or clasps designed to join together two parts or members such as two boards or two parts of a piece of furniture. Thus our invention can be used to join a mirror frame to the base of a dresser, a chiffonnier, commode, bureau and so forth.

The main object of our invention is the provision of a very simple, cheaply made and easily assembled device comprising a pair of interchangeable interlocking members which when engaged with each other will join the two elements to which they are attached firmly and rigidly and 'yet permit the ready detachment of the elements when desired.

A further object is to so form these interlocking members that, they may be stamped out of relatively thin sheet metal, and in this connection is a further object to form both of the members alike so that they may be interchanged in position and further avoid the necessity of stamping out or otherwise forming two different members.

A further object is to provide interlocking members, each having a tongue and a socket, the tongue of one member being inserted in and engaged with the socket on the other member, the tongues being so formed that they may be attached to the opposed element of the two elements on which the jointing plates are mounted.

Our invention is illustrated in the accompanying drawing wherein,

Figure 1 is a plan view of two elements connected. by our improved joint device. Fig. 2 is a side elevation of one of said elements with the joint plate attached thereto. Fig. 3 is a perspective view of the two joint plates separated from each other.

Referring to these drawings A and B designate two contiguous portions or elements, such for instance, as a part of a mirror frame and the back board of a chest of drawers upon which the mirror frame is to be mounted.

The jointing device comprises two plates of relatively thin sheet metal, both plates having the same form, one of these plates, however, being designated 2 while the other plate is designated 2. As illustrated each plate is semi-oval in form, and the straight edges of the plate,'designated 3, are adapted to abut against each other. The plates 2 and 2 are so disposed upon the elements which they are designed to connectthat the straight edge of each plate will be in line with the edges of the elements. Each plate is formed with a tongue 3 or 3* which projects out from the straight edge of the element and which is, of course, formed integral with the plate and of'the same thickness as the plate. Each plate is also formed with a socket a or 4* which is stamped out 2 and 2 is formed with a plurality of perforations 5 through which screws may pass to hold the plate to the elements A. and B, and each socket is likewise formed with a perforation 6 for the passage of an attaching screw. Each tongue is also formed with a perforation 6 which when the tongue is placed within its corresponding socket registers with the perforation 6 for the passage of a screw 7 whereby the tongue is held in engagement with the element directly be neath.

It will be particularly noted that the plate 2 is precisely like the plate 2 but is simply reversed in position, thus only one form of plate has to be manufactured in order to provide two plates which will engage each other and interlock. The plates 2 and 2 are so disposed that their straight edges 3 abut against each other so that the tongue of one plate is out of alinement with the tongue of the other plate, but in alinefactured. It will be noted that the two members may be very readily engaged with each other and that after the screws 7 are driven home the articles or elements A and B will be very quickly and rigidly fastened to each other.

One of the advantages of our invention residing from its cheapness and simplicity is that it requires the services of but one man in putting together the various parts, as for instance, the various parts of a piece of furniture, and that it requires the setting of only two screws after the tongues are inserted in the sockets in order to hold the parts rigidly in engagement with each other.

It will be, of course, seen that we may modify our device to some extent without departing from the spirit of the invention and that we do not wish to be limited to the precise arrangement or position of the screws illustrated.

The plates 2 and 2 are preferably made of steel or wrought iron or of material of suflicient strength to serve the purpose intended.

It will be seen that as the device is made of fiat sheet metal it will take up very little room, which is of particular advantage in many cases, as for instance, where the device is to be used for the purpose of joint ing a mirror frame to the back board of a dresser, as it permits the article of furniture to be moved up close to the wall.

We, of course, do not wish to be limited to any particular use for this jointing device, but it is obvious that it may be used in a large number of situations other than those referred to heretofore.

Copies of this patent may be obtained for plates to the elements, each element being formed with a slightly raised socket and a laterally adjacent tongue, said tongue being perforated and each socket being perforated correspondingly, the tongue of one plate entering into the socket of the other plate and screws passing through said sockets and tongues.

3. As an article of manufacture a joint plate perforated for attachment having a straight edge with a flat perforated tongue projecting therefrom, the plates adjacent the inner line of said tongue being pressed outward toform a socket of the same width as the tongue, said socket being perforated.

In testimony whereof we affix our signatures in presence of two witnesses.

WILLIAM H. GREENLEAF, JR. PHILIP r. MOORE.

Witnesses:

JEREMIAH FOSTER, GEORGE K. ROGERS.

five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

